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<br />
<br /> .:... ""~,F.-~'\.
<br /> LEGEND "
<br />@=-SASIN ID
<br /> BASIN AREA (SO MI)
<br />& DESIGN POINT
<br />"-,,,~ AREA OF RAINFALL EVENT
<br /> SUB-BASIN BOUNDARY
<br /> BASIN BOUNDARY
<br />
<br />*NOTE: THIS DRAWING ILLUSTRATES THE
<br />ANTICIPATED RUNOFF AT DESIGN POINT TC THAT
<br />CAN BE EXPECTED FROM A HYPOTHETICAL
<br />RAINFALL EVENT ON BASIN TB1 (POLHEMUS
<br />CREEK). RUNOFF WILL BE CONVEYED TO NORTH
<br />RAINBOW FALLS PARK PRIMARILY ALONG THE
<br />ADJACENT POLHEMUS CREEK TRIBUTARY.
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<br />II'
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<br />
<br />THE RAINFALL DEPTHS, DURATION, RETURN
<br />PERIODS AND CORRESPONDING PEAK FLOWS ARE
<br />" ,>,'~-':'_'''0i: _ SHOWN. IN GENERAL, RUNOFF GREATER THAN
<br />~i;~.' ,~:"-'.r.-.1.:0000. r<~\. 10 CFS WOULD MOST LIKELY BEGIN TO MOVE
<br />,> ,.' ,; : -- ,:";:.'... SIGNIFICANT AMOUNTS OF SEDIMENT, EXCEED
<br />~CllNt ~ )~~~"_"- -,~: THE CAPACllY OF EXISTING CULVERTS, AND
<br />; \;,f!' ,,-,: -:.:: ' .' CAUSE POSSIBLE DAMAGE TO ROADWAYS AND
<br />,:~(:r -~':'~7':'. -;- PERSONAL PROPERlY.
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<br />1 '" , _._____,
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<br />--~~~
<br />
<br />DRAWING
<br />1 OF 6
<br />
<br />PEAK FLOWS AT
<br />NORTH RAINBOW
<br />FALLS PARK - TB
<br />
<br />HAYMAN FIRE AREA
<br />HYDROLOGY
<br />
<br />'\~"i{ / >~:I-;: ," "?':
<br />_ _t_ -----':..":_~f%L~~tr3,t ~
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<br />-14/
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<br />2.37
<br />387.9
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<br />s..
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<br />
<br />2-HR
<br />0.83 11.21 11.46 I 2.06
<br />0.0 6.4 43. 237.6
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<br />
<br />MDcxx;us ChNrY
<br />
<br />.00 .25 .50 .75 2.00 2.25 2.50 3.00
<br />0.0 _ 0.2 52,.3 I ~22.6 -'. 21~:8 334.5 ~70.5 ~1.6,
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<br />- ~ r/,/;<\ } < -~';,:,: :'~. . ~:-~'::~; ;: t':
<br />
<br />DESIGNED Reo Df.lE
<br />DRAWN RAB Df.lE
<br />CHECKED RRloI Df.lE I
<br />REVISED Df.lE_
<br />
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<br />
<br />RAINFALL DURATION
<br />RAINFALL DEPTH
<br />FLOWRATE
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